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LMK00334
SNAS635E – DECEMBER 2013 – REVISED JANUARY 2022
LMK00334 Four-Output Clock Buffer and Level Translator for PCIe Gen 1 to Gen 5
1 Features
• 3:1 Input multiplexer
– Two universal inputs operate up to 400 MHz and accept LVPECL, LVDS, CML, SSTL, HSTL, HCSL, or single-ended clocks
– One crystal input accepts a 10- to 40-MHz crystal or single-ended clock
• Two banks with two differential outputs each
– HCSL, or Hi-Z (selectable) – Additive RMS phase jitter for PCIe Gen5 at 100
MHz:
• 15 fs RMS (typical) • High PSRR: –72 dBc at 156.25 MHz • LVCMOS output with synchronous enable input • Pin-controlled configuration • VCC core supply: 3.3 V ± 5% • Three independent VCCO output supplies: 3.3 V,
2.